Pottery forming machine



Original Filed Feb. 5, 1927 Z SheetS-Sheet l I N V EN TOR. MrjliamJMjl/er A TTORN E Y no I:

Patented July 7, 1931 UNITED STATES. PATENT OFFICE WILLIAM J. MILLER, 01 SWISSVALE, PENNSYLVANIA POTTERY FOR-MIN G MACHINE Application filed February 5, 1927,

perfected multiple profile in my copending application for patent for multiple and automatic jigger for use in the manufacture of articles from plastic materials filed November 17, 1926 Serial No. 148,8 72, and whereinthe molds are preferably conveyed on recessed trays in a rectilinear plane to a position between shapin tools and reciprocating and rotating chucks.

Another object of my improvement isto provide independent means for the control and adjustment of each profile and trimmer separately from all the other profiles and tr mmers of the machine.

1 A further object of my improvement isto provide horizontal as well as vertical adj ustment with the type of automatic profiles, which are hereinafter described. v r -A further object of my improvement isto have all the units of'i'ny automatic profile, trimmer and jig'ger combined compact and operatedfr'om a single set of bearings.

Another object of my improvement is-to provide a'combined automatic profile, trimmer and jigger in apottery forming machine which is simple, durable and inexpensive.

Other objects and advantages will herein after appear. I A i I attain these objects by the mechanism, illustrated in the accompanying drawings orby any mechanical equivalent or obvious modification of the same. I V

In the drawings Fig. 1 is a front elevation. of my automatic profile, trimmer and jigger' combined, shown as applied to multiple jigger's, such as described in my above 'copend ing application with the. middle parts of the machine broken away showing some parts in: cross-section and omitting sundry parts of the machine. v

Fig. 2 is an end elevation on the line 2.-2-

of Fig. 1, looking in the direction of, the: are

Serial No. 166,181.

jet-ts of my improvement use with multiple'jiggers,

Renewed January 27, 1928 rows, also omitting sundry parts of the ma chine, and showing others as partly broken away;

Fig. 3 is a detail end view in elevation of parts, which are hereinafter described, on the line 3'3 of Fig. 1, looking in the direc tion of the arrows. j,

Like numerals refer to like out the several views. I

11 designates the frame of the machine, and 12 a base under said frame 11. Y

J igger supports 13 are shown as positioned on said base 12, and have reciprocating jigger parts throughspindles 14 slidably mounted thereon; the

spindles 14 terminating in chucks 15, which operate to intermittently raise molds 16 from seats 1 in carriers 18, which ride on a track 19, and are propelled by extensible latches 20,

as in my above copending application.

The latches 20 are shown at the right hand 79 side of Fig. 1 as pivotally connected to the upper ends of oscillating arms 21, wh ch are pivotally mounted on bearings 22, which are secured to said base 12.

A high speed power shaft23 isshown as having mounted thereon vertical friction gears 24, intermittently to engage horizontal friction gears 25 on said spindles 14, as described in the above copending application.

A cam shaft 26 may be back-geared from said shaft 23, or preferably independently driven, and it has adj ustably secured thereto a pair of positive cams 27, one of which is shown in Fig. 1, each of said cains being adapted to engage a roll 28, which is pivot ally connected to one of said arms 21, to actuate the latter with the latches 2 0 thereon, therebv intermittently moving said carriers 18 on said track 19, as described more in detail inmy above copending application.

The frame 11 is shown as having thereon horizontal brackets 29 and 30, for slidably connecting thereto vertical extensible pitmen 3132, which consist each of two sections 31 :and 32, adjustably secured to each other by a union 33, whereby the length of each of said pitinen 31-32 may be varied and ad usted. 1

Rotary cams 34 are, shown as ad ustab y secured to said shaft 26, in contact wi T0115 35, which are shown ,pivotal y connected to the lower ends of said pitmen 31-32 by meansof pins 36, whereby said pitmen 3132 may have a reciprocating motion imparted thereto. The cams 34 have each an individual outline of its own, which may differ from the outlines of some of the cams of the machine, and may also be similar to the outline of one or more other cams of the machine, and each cam'is designed to'impart a predetermined motion tothe part of the Inechanism,"which it actuates, as is-sherein-after-described., I y

The frame 11 comprises two columns 37 and 38, shown as connected by anoverhead beam 83. The column 37 has at the upper end thereof a bearing 39 and the column 38-has at the u per end thereof a bearing 40.

;hollow spindle 41 is revolvably sup-- ported-in said bearing 39, another hollow spindle 42 revolvably supported infsaid spindle 41 concentricallytherewith, the spindle';4l serving as a bearingfor said spindle 42.

third hollow spindle 43 is revolvably supported in said spindle 42 concentrically =therewith,'the spindle 42 serying as a bearing for said spindle 43.

"A fourth hollolw spindle 44, is revolvably supported in said spindle 43, thelatter serv- 'ing, as abearing-forthe former.

A A11 -innermost-shaf 82, which may be either solid or hollow, extends through the inside of said spindle 44 andthrough the-inside of ,another setof concentric ghollow spindles,

' which are} supported by said bearinfg'40 as hereinafter 'described, toi keep the inner ends of said p ndl m in qu o al a v ment with each other.

Ahanger113, which vided,=tosupport-the inneriend of said spindle 44, for the also ,on same of the other spindles. l

l thereon a hu b "4'6, isnadjustably' secured to the suitable s'et screw on saidhub 46; another rearwardly extending arm 47, which thereon a-hub 48, may be likewise adiustably secured-to the outer' end'of saiid'spindle- 42; a

1 third rearwardly extending arm 49, whichhas rearwardly extending arm 45,'which has .outer end of said spindle 41 by means of a has thereon a hub '50, is similarly secured to the outer end of dl liextending arm 51, which has rearwar fithereon a hub 52,.is-in-the same way secured 5 to the outer eiid of said spindle 44-. c Each ofsalid arms ,45, 47,149 fand-51 is piv-'-- 1 ot ally connected byimeans of a fldating pivotiblq'ck 53 to-a bifurcation 58sat the upper end otthe lattrinturn being pivotallyconnect'ed -,,by means of of a connecting rod 54, as shown in Fig.2, each .wpin 5, 501? said pitmen 2,1" 'escillating said "spindles 41,;42,

p issecuredto said beam I 8 3by,means 'ofsultable fastenings, is prolatter -to oscillate therein a said' spindle 43, and a fourth 43 and 44 during the operation of the ma chine.

Each of the floating blocks 53 is slidably mounted in a slot 56 in each of said arms 45,

47 49 and 51, and is adjusted in position by sists,

I A lock nut 59 is shown in Fig. 2% securing i said screwi5'7-iagainst accidental displacement.

A forwardly extending arm 60, which has 5 thereon a hub'61, is adjustably secured to the 8 inner end of said spindle 41by means of a suitable set screw on said hub Q61} another @forwardly extending arm 62, which has th'ereon a-h ub 63, is adjustably secured to the inner end of said spindle42fby means o -f -ascrew on said hub 63.

al'third' forwardly extending ,arm 64,which has thereon a hub 65, is adj ustably secured to theinner end of said spindle 43 by means of a screwon said hub 65;,and a fourth for-9 wardly extending arm 66, which has thereon hub 67, is adjiistably secured to the inner end of said spindle by means of a screw en said'hub 67 i Each of said columns-37 and 38 has thereon nearthe upper end the cot a forwardlyextending bracket 68, whichissholwn iniFig. 2 as capped by a base 69, for aFbearing YO be mountedthereon W A 'shaft 71 is revolvably atthe,

ends thereof bysaid-bearings ffol Oscillat-ingarms'H and are shown in Fig, 2 as swivelled on said shaft 71, "and are 'normallyi'keptj in 'their higher pqs'itibns by means oi spectively. v Each of the springs 7 4- is resting with its lower end ina depression 92 on'orie of apair of platformsfiti,

which are' stationary i'with compression springs 74 and-Q75 'rel relationfto said bearings 10, andmaybe made integral therewith; and each of "said springs 74' is extending at'its' upper? 'end into afcavity '94; in th'iiiidersidei crone'bf' aid anrisfm t i es "7 f hi re in 'i ii lflli lleue H ieaea bn sa i ipla ferni 7 a 15. i depress and are'extending at their upper into cayities 95 in theunderside otfsaidarms7 3.

arias-172 are j nossa 'u 'i lsfeidarm resp number of said molds;,1,6, which 'are' shown as intermittently supportedby chucks .15 at the upper ends of said jigger spindles 14,- t0

;. '64, a a ii'da metaaresituatea muer m reciprocate and revolve on said jigge rspin- ,7

. v j ,1 1 ir said chucks thereunder. the material 81 on said molds 16 may The molds 16 and profiles 77 may also be employed with'jiggers of ordinary design, if desired. I

Compression springs 84 are interposed between each of said arms 60 and 64 and said arms 72, intermittently to depress said arms 72 with the profiles '77 thereon, to bring the latter vertically into operative position, to shape said material 81 on said molds 16.

Thelower ends of said springs 84 are resting in depressions 85 on said arms 72, and the upper ends of said springs 84 are abutting against the underside of screws 86 in said arms 60 and 64, whereby the pressure of said springs 84 may be adjusted.

Compression springs 87 are also interposed between each of said arms 62 and 66 andsaid arms? 3, intermittently to depress said arms 73 with the trimmers thereon, to bring the latter into operative position, to trim the material 81 on said molds 16.

The lower ends of said springs 87 rest in depressions 88 on said arms 73, and the upper ends of said springs 87 are abutting against the underside of adjusting screws 89 in said arms 62 and 66, whereby the pressure of said springs 87 may be regulated.

Y Screws 90 in said arms 72 have their lower ends intercepted by said platform 76, adj ustably to limit the downward motion of said arms 72; and similar screws 91 are provided 'in said arms 7 3, for a similar purpose. 7

7 The phase of motion of each of said profiles '77 with relation to itscorresponding trimmer 78 may be determined by the outline of each of said cams 34, which actuates each of said profiles and trimmers, and the position of the said cams on'said shaft 26.

The bearing 40 on said column 38 has also revol'vably mounted therein a hollow spindle .96; another hollowspindle 97 is revolvably mounted inside of said spindle 96, which serves as a bearing for said spindle 97; a

third hollow spindle 98, is revolvably mounted inside of said spindle 97, which serves as aibearing therefor.

A hanger 115, which is secured at its upper end to said beam 83, is provided to support the outer end of said spindle 98, for the latter to oscillate in said hanger 115, and a similar hanger 116 is provided for the inner end of said spindle 98,- which also serves as a bearing for the left hand end of said innermost shaft 82, which extends through the entire length of said spindles 44 and 98, to keep them in alignment with each other.

Collars 117 and 118 on the ends of skid shaft 82, prevent longitudinal displacement of the latter with relation to said spindles 44 and 98.

An arm 99, which has thereon a hub 100, is adjustably secured to the outer end of said spindle 98 by means of a set screw on said hub- 100, and is pivotally connected to the upper end of a connecting rod 54 by means of a pivot block 53 and suitable pins in a bifurcation 58 at the upper end of said rod 54.

A slot 56 is provided in said arm 99 forsaidblock 53 to slide therein, and a regulating screw 57, passing through the end of said arm 99, for adjusting the-position of said block 53 in the slot 56 of said arm 99, substantially as shown in Fig. 2 in connection with said arm 45. V

The lower end of said last mentioned rod 54 is pivotally connected to the upperend of one of said pitmen 32 by means of a pin 55. Another arm 101, which has thereon a hub 102, is adjustably secured to the outer end of said spindle 97 by means of a set screw on said hub 102, and is likewise connected to one of said pitmen 32 by means of one of said connecting rods 54 in the same way as said the right of said bearing 40 in Fig. 1. by

means of a set screw in said hub 104, and is also connected to a pitman 32 by means of a connecting rod 54, in the same way as said arms 99 and 101, whereby said spindle 96 may be oscillated; the angle spindle 96 may also be varied and adjusted by means of a regulating screw 57 on said arm 103, as hereinbefore described'in connection with said arm 45 and said spindle 41. An arm 105, which has thereon a hub 106, is adj ustably secured to the inner end of said spindle 97 by means of a set-screw on said hub 106, to oscillate with said spindle 97.

An arm 107, which has thereon a hub 108, is adjustably secured to the inner end of said spindle 96 by means of a set-screw on said hub 108, to oscillate with said spindle 96.

An arm 109, which has thereon a hub 110, is adjustably secured to the inner end of said spindle 98 by means of a set screw on said hub 110, to oscillate with said spindle 98, for a purpose, which is hereinafter described. The spindle 96 with the arm 107 at the inner end thereof is oscillated by means of the l of oscillation of said said bearinglO {in 7 respectively,

arm :1103 on ,said spindle 96, to the right of The spindleilT with the arm 105 at the inner end'thereof is oscillatedby means of the arm101 at thecouterzend ofsaidspindlefl.

The spindle 98 with the arm 109 at the,in

her-end thereof is oscillated by means of the :ar n99vatxthe outerend of said spindle 98.

'Thelefthand endofsaid shaft 71 has also swivelledrthereonian arm 72a and anarm 7 3a, whichmay'be normally supported in an ele- :vated position by means of springs 74 and under said arms 105 and 107 -.\respectively. The springs 74 and? 5 may rest onaplatform 716 on the bearings 7 0,-as herein- Joe-fore described;

arm 72a and the underside of a regulating f screw in said ,arm 105, and'a spring'87 may be interposed between said arm 73a and'the :undersideoif ,an adjusting screw in'said arm :107,,'gfor the same ip'urpose,-as is hereinbefore .describedinconnction with said arms and Theiarm 7 2a,;under saidarm 5105, hasslid- ,ablymounted thereon a profile 77a, for shapzingthexmaterial'of deep-ware, such as cups c ndithe like.

' 1 The arm 78a, under said arm 107 has'secured thereto a trimmer 78a of above described vconstruction, -forxthe*operation of atrimrioing;the rimof said deep ware.

Vertical motion is imparted to said prole 77a and :trimmer78a bythe oscillation of said arms 105 and 107 respectively, in .substantially :thesameway =LSgtO saidyprofiles 7.7 and trimmers 78, ,as hereinbefore described. Toafiord a horizontal motion tosaid pro- ;filel'm'a, for loringing it into operative position indeep ware, I pro videa pin11 1 ongsaid proslam, as shown .lpIlzFig. .3. The pin 111 is inengagementjwith, a slot ;112 insaid arm 109 on said s pin,dle98, whereby said profile 71a may cillation of said; spindle 98, and the iphase of said horizontal motion of said profile 77a maybe determinedbythe outline of the particular :camfil, which actuates said arm 99 and spindle 98;, and by :the adjustment of the position of'said arms 99 vand109 01. aid spindle 98, as-hereinbeioredescribed. V

v The pin 11 1 may be secured to the arm 109,

a and the slot 112-provided in the profile 7a,

instead of the-arrangement as shown in Fig. EL if desired. r f The numberof profile arms-:and'trimmer arms, together with the number of ji'ggers, on twhich theyoperate, maybe increased or diminished if desired; r

Many other changes may be made in "the details o'fa,my'ma chn e without departing tromthewmain "scope ,of my invention, and

v 1 parts thereof maybe used without other parts. v V Y lidoznotthereforerestrict myselfto the-demay be interposed betw'een v be shifted horizontally by the -ostailsas shownin the drawings,-but I intend to include also all mechanical equivalents and vobvious modificationsofi the same within the scopeof my inventon. I

"I claim as my invention and desire to-securejby Letters Patent:

1. 'In a pottery ally mounted arm, a trimmer thereon, another pivotally mounted arm, a profile thereon, a means for intermittently. depressing said trimmer-arm," ameans for intermittently depressing said profile arm, a 'jigger, and r0- tary cams on said jigger, for actuating'each of said depressing means independently of the other.

2. In a pottery :forming machine multiple pivotally mounted arms, profiles thereon, other 'multiple, {pivotally mounted arms, trimmers (thereon, a means for intermittently depressingeach of said arms independently intermittently depressing said trimmer farm,-

a jigger and a means, :for actuating said-spindle's'independently of each other, operatively connected-to said jiggerl d. In a Tpottery forming machine multiple pivotally mounted arms with profiles there- T on, other multiple -.pivotally mounted arms with trimmers thereon, an oscillating spindle with an arm thereon or each; of said profile arms, and trimmer arms, for intermittently depressingeach of said profile arms and trimim'er arms, multiple jiggers and a :means, for actuating said spindles independently of: each other,operativelyconnectedto saidjiggers.

5. Ina-pottery forming machine multiple 3 pivotally mounted arms'with profiles thereon,

forming machine a pivotmultiple pivotally mounted'arms with trimv -mers thereon, ,anoscillating spindle for-each of said arms, said spindles being. ,j ournalled within each other coa xially with each other, veach successive outer spindle .serving as a bearing for each successive inner'spindle,

multiple jiggers, arms on said spindles, for

intermittently depressinglsaid profile arms and said trimmers .arms,]and other arms on said spindles, for operatively connecting the same to said jiggers.

6. Inca pottery forming machine apivotally mounted I arm, a profile slidably mounted thereon, a means for intermittently depressing said arm, to move said profile vertically into operative-position,a means for intermittently sliding 'said profile on said arm, to move said pro-file substantially horizontally into operative posiition' a. jiggerceml rotary :cams on saidgiggelt, ior cactuatiingasaid de pressing means and said sliding means independently of each other.

In a pottery forming machine multiple pivotally mounted arms, profiles: slidably mounted thereon, a means for intermittently depressing each of said arms independently of each other, for moving said profiles vertically into operative position, a means for i11- termittently sliding each of said profiles on its arm independently of each other, for moving said profiles substantially horizontally into operative position, a jigger and rotary cams on said jigger, for actuating said depressing means and said sliding means independently of each other.

8. In a pottery forming machine, the combination with recessed mold-carrying trays and a plurality of molds carried by said trays, of reciprocable shaping tools mounted in alinement above the horizontal plane of said trays and reciprocable and rotatable chucks mounted below the horizontal plane of said trays, means for intermittently advancing the trays in a substantially straight line to a position between said shaping tools and said chucks; means for reciprocating and rotating said chucks to elevate said molds from said trays and rotate the molds adjacent said tools, and rotary cams also mounted in alinement for independently reciprocating said 7 tools.

9. In a pottery forming machine, moldactuating mechanism, multiple pivotally and resiliently mounted profiles, rocking members mounted in alinement adjacent said profiles, and independently adjustable cams operating in timed relation to said mold-actuating I mechanism for actuating said rocking members.

10. In mechanism of the class specified, a jigger having a profile and trimmer mounted thereon adapted to be depressed into operative position, rocking members mounted on telescoping spindles adjacent said profile and trimmer, and means adjustable to operate in timed relation to said jigger for actuating said rocking members to intermittently depress said profile and trimmer.

11. In a pottery forming machine, mold rotating mechanism, profiles and trimmers I pivotally and resiliently mounted in alinement on a common spindle on the machine, continuous motion cams, and a means for transmitting individual motion from said cams to said profiles and trimmers.

12. In a pottery forming machine, moldactuating mechanism, multiple pivotally and resiliently mounted shaping tools, rocking members for independently depressing said tools into operative position, a reciprocating pitman having an adjustable pivotal connection with each of said members and multiple, independently adjustable, continuous motion cams for actuating said pitmen independently of one another.

13. In a pottery forming machine, the combination with recessed mold-carrying trays, of a plurality of depressible shaping tools mounted in alinement above, and reciprocable and rotatable chucks mounted in alinement below the horizontal plane of travel of said trays, means for advancing the trays in a substantially straight line to a position between said tools and said chucks, means for reciprocating and rotating said chucks, and means for depressing said tools into operative position with respect to a mold or molds consisting of a plurality of independently movable rocking members which are mounted in axial alinement adjacent said tools and means for independently actuating said members.

14. In a pottery forming machine, the combination with recessed mold-carrying trays,

of a plurality of depressible shaping tools bers.

XVILLIAM J MILLER. 

